EP 1878517 A1 20080116 - Forged piston, internal combustion engine, transportation apparatus and method of making the forged piston
Title (en)
Forged piston, internal combustion engine, transportation apparatus and method of making the forged piston
Title (de)
Geschmiedeter Kolben, Verbrennungsmotor, Transportvorrichtung und Verfahren zur Herstellung des geschmiedeten Kolbens
Title (fr)
Piston forgé, moteur à combustion interne, appareil de transport et procédé pour la fabrication du piston forgé
Publication
Application
Priority
JP 2006192870 A 20060713
Abstract (en)
A method of making a forged piston (10) includes the steps of providing a workpiece made of an aluminum alloy, a magnesium alloy or a titanium alloy; and forging the workpiece with stress applied thereto in a predetermined direction (forging direction). The method further includes, before the step of forging, the step of working the workpiece such that fiber flows (F) of the workpiece are nonparallel to the predetermined direction.
IPC 8 full level
CPC (source: EP US)
B21K 1/18 (2013.01 - EP US); F02F 3/00 (2013.01 - EP US); F02F 2200/04 (2013.01 - EP US); Y10T 29/49249 (2015.01 - EP US)
Citation (search report)
- [DA] JP 2000179399 A 20000627 - YAMAHA MOTOR CO LTD
- [A] JP 2000039067 A 20000208 - YAMAHA MOTOR CO LTD
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1878517 A1 20080116; EP 1878517 B1 20081126; AT E415219 T1 20081215; DE 602007000292 D1 20090108; US 2008010828 A1 20080117; US 8312856 B2 20121120
DOCDB simple family (application)
EP 07012201 A 20070621; AT 07012201 T 20070621; DE 602007000292 T 20070621; US 76685207 A 20070622